You can find a lot of photos on Flickr.com.
Just go to the search function, everyone's uploads, and type in what you're looking for.
For instance, I just typed in '1969' and got over 108,000 results. Cruise through that for a few minutes, and then narrow things down by adding something else in with 1969.
If what you're looking for is 2 words, like Grand Hotel, then you need to put it in like this....
"Grand Hotel"
I have my photo stream on there that includes some cars, but I think you may have seen most of them on here in other threads.
http://www.flickr.com/photos/14278213@N00/
Make sure you have the time to spend though, you can get pretty sidetracked.
